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The Evolution of Porcupines
Transcript of The Evolution of Porcupines
porcupines have evolved to have weapons
on their body. Quills!
Also they have a few characteristics of other
animals: They can climb
trees like a
squirrel. Their quills are made
of keratin, like rhino horns. They have
beavers. What are porcupines? Type: Mammal
Average life in the wild: 5 to 7 years
Size: Head-to-body 26-36 inches
Tail 8-10 inches
When they are in a group, they are called a "family" Porcupines have quills all over their
tail, back and head. The quills are
made of the stuff that makes up
animal horns. That is called
keratin. When a porcupine is threatened.
The quills stand upright on
their body. So, if any predator
touches the porcupine's quills, the quill will detach from the porcupine and stick to the predators body. North and South American porcupines
climb a lot. They use their claws to climb
up the tree and they also use their
tail for gripping.
They climb for the bark off the tree which they eat or to get away from predators. The steps I took Step 1
I found background information on porcupines Step 2 I wrote down the information on note cards and labeled what was going to be on each slide. Step 3
As I was working, I wrote down all the steps I was doing. Then, I wrote it on my presentation. Step 4
I found the answer to my question. Step 5
I think about my answer and I figure out more questions that I have. Step 6
I did my bibliography My answer I found out that porcupines evolved from hedgehogs. Hedgehogs have been around for more than 15 million years. The hedgehog's DNA has not changed much in that time. Porcupine's DNA is not as old as the hedgehog's so they had to come from the hedgehogs. Today there are two main groups of porcupines:
old world porcupines and new world porcupines. Both of these came from one ancestor and
evolved differently, but one thing that evolved the same were their quills.
This is called parallel evolution. Old world New world Will porcupine species expand?
Can porcupines swim?
Where do porcupines live?
What other animals have parallel evolution? My questions: http://a-z-animals.com/animals/porcupine/